Cannot Remove Path Error Inquiries

I seem to get this error everyone time I run Threadom on my system:
cannot remove path when cwd is /tmp/... for /tmp/...: at /home/.../I-TASSER2.1/I-TASSERmod/runLOMETS4ThreaDom.pl line 429.

I don't think it interferes with the program's functioning but is there a way to fix it?

Thank you